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Measurement method of key nodes in ad Hoc network

A key node and measurement method technology, applied in network topology, electrical components, wireless communication, etc., to achieve high stability and robustness, improve reliability, and improve accuracy

Active Publication Date: 2017-06-13
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

By judging whether the comprehensive trust value of the node is greater than the trust value threshold, and selecting nodes greater than the trust value threshold to join the trust set, it overcomes the shortcomings of the prior art that cannot obtain reliable key nodes, so that the present invention has the ability to obtain reliable key nodes

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  • Measurement method of key nodes in ad Hoc network
  • Measurement method of key nodes in ad Hoc network
  • Measurement method of key nodes in ad Hoc network

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0041] Refer to attached figure 1 , the application scenario of the present invention is an Ad Hoc network. There are a plurality of wireless nodes in the Ad Hoc network, and the nodes communicate with each other, wherein a gateway proxy node directly communicates with the nearest node in the network. The gateway agent node collects the topology information of the network, obtains the network topology structure diagram, and calculates the importance of the nodes according to the network topology structure diagram. The node transmits the trust vector to the gateway node, calculates the comprehensive trust value of the node in the gateway node, and judges whether the comprehensive trust value is greater than the trust value threshold, adds the nodes whose comprehensive trust value is greater than the trust value threshold to the trust set, and finally selects k...

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Abstract

The invention discloses a method for measuring key nodes in an Ad Hoc network. The method comprises the steps that (1) a topological structure in the network is obtained; (2) the node importance is calculated; (3) a comprehensive trust value of the nodes is calculated; (4) whether the comprehensive trust value is larger than a trust threshold value or not is judged; (5) the nodes are added to a trust set; (6) whether all the nodes are traversed or not is judged; (7) the key nodes are selected. According to the method, the importance of the nodes in network topology and the reliability of data transmission are taken into comprehensive consideration, so that the accuracy of a measurement result of the key nodes is improved by means of the method. Due to the fact that the D-S evidence theory is introduced into the method, the comprehensive trust value of the nodes can be calculated correctly by means of the method, and reliable key nodes can be found. The method can be further applied to topological control and safety protection of the Ad Hoc network.

Description

technical field [0001] The invention belongs to the technical field of computers, and further relates to a method for measuring key nodes in an Ad Hoc network in the technical field of computer networks. The invention can measure and find out key nodes from the Ad Hoc network, and is further used for topology control and safety protection of the Ad Hoc network. Background technique [0002] Key nodes play a key role in both network topology and transmission communication. Finding out the key nodes from the measurement in the Ad Hoc network can further reduce the load of the key nodes, increase the reliability and fault tolerance of the key nodes, and defend and protect the network. At present, key node measurement methods are mainly based on network topology measurement. [0003] The patent "Distributed wireless network key node detection method" owned by Xidian University (patent application number: 200610104420.X, authorized publication number: CN 100403699 C) discloses ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W84/00H04W84/18H04W24/02
Inventor 杨力刘卓超姜奇张俊伟刘志宏李虎任新波马卓姬文江
Owner XIDIAN UNIV